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aindatissa
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Join Date: Jul 2009
Posts: 11

NEC - mA Rating for GFCI Breakers

09/10/2009 8:08 AM

Dear Sir,

We are expecting to use waterproof receptacles for wet areas with GFCI breaker without having GFCI receptacles. Could any body kindly let me know the mA rating of GFCI breaker for this kind of application as per NEC?
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wareagle
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United States - Member - New Member

Join Date: Jun 2008
Location: Alabama
Posts: 1604
Good Answers: 63
#1

Re: NEC - mA Rating for GFCI Breakers

09/10/2009 5:03 PM

The UL leakage current specification for the PXI-1042 and 1042Q chassis is 3.5 mA.

Information on GFCI : GFCI monitors the current flow discrepancy between the hot and neutral pins of the plug and if it exceeds by so much (in the order mA usually) it will trip. There are different classes of GFCIs, each with a different rating. A UL Class A GFCI is meant to trip between 3 mA and 7 mA. A UL Class B GFCI is meant to trip between 20 mA to 40 mA.
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Anonymous Poster
#2
In reply to #1

Re: NEC - mA Rating for GFCI Breakers

09/10/2009 11:34 PM

Dear Sir,

Thanks for your explanation. Could you kindly let me a location where I can get the information about UL class A & B?
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